You are assuming these collisions occurred because the Navy crews didn't know the other ships were there. My understanding is that the US vessels knew the other ships were there and did not react properly.
It was probably similar to what happened when the USS Porter collided with another vessel in the Strait of Ormuz. You can hear how confusing the situation was from this audio recording. Apparently, the work environments can be extremely stressful and that can lead them to become toxic.
That the crew does not know how to avoid a collision and/or of what their ship can and cannot do is still pretty unbelievable. That they didn't evacuate the compartments that would be crushed indicates that either they didn't know the collision would happen or didn't know where it would impact and how bad it'd be.
